American astronaut Eugene Cernan (in blue), Thomas Stafford (center, shirtless), and John Young (right) clown about with their families during a barbecue outside Young's home in Houston in 1969. The three men were the back-up crew for the Apollo 7 mission. less

American astronaut Eugene Cernan (in blue), Thomas Stafford (center, shirtless), and John Young (right) clown about with their families during a barbecue outside Young's home in Houston in 1969. The three men ... more

American astronauts, from left, Thomas Stafford, John Young, and Eugene Cernan share a laugh during a barbecue outside Young's home in Houston in 1969. The three men were the back-up crew for the Apollo 7 mission. less

American astronauts, from left, Thomas Stafford, John Young, and Eugene Cernan share a laugh during a barbecue outside Young's home in Houston in 1969. The three men were the back-up crew for the Apollo 7 ... more

The family of Gemini 7 (Gemini VII) astronaut Jim Lovell sit in a bedroom in Houston and talk on the day of the mission's 1965 launch. From left, eldest daughter Barbara lies on the bed, younger daughter Susan sits in the foreground, son James (Jay), and pregnant mother Marilyn Lovell. less

The family of Gemini 7 (Gemini VII) astronaut Jim Lovell sit in a bedroom in Houston and talk on the day of the mission's 1965 launch. From left, eldest daughter Barbara lies on the bed, younger daughter Susan ... more